| 0 | Nothing at all |
| 0.5 | Extremely weak (just noticeable) |
| 1 | Very weak |
| 2 | Weak (light) |
| 3 | Moderate |
| 4 | Somewhat strong |
| 5 | Strong (heavy) |
| 6 | |
| 7 | Very strong |
| 8 | |
| 9 | |
| 10 | Extremely strong (almost max) |
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.